I do not know wha onboarding might be offensive. It is a short word for the process of getting people onto a platform.
the UX issues I mention are more related to the web interface. I am aware of some clients out there enhancing the experience. As a rule: I do not recommend using any social media app on a smartphone.
@katharina_buholzer when people, in corporate speak, say onboarding, i see cattle being prodded onto wagons to the slaughterhouse. Or worse. Ok, WHICH mastodon web client? The 'official one' I suppose?